英文關鍵字
aged
architect
architectural
architecture
builder
building
construction
contractor
fifties
foreman
happy
hard
hardhat
hat
helmet
high
house
industrial
industry
male
man
management
manager
middle
older
one
person
positive
safety
scaffolding
senior
site
smile
smiling
standing
success
successful
survey
surveyor
talking
vest
vis
visibility
waving
white
work
worker
working
yellow